What common object contains nitrogen, and name an associated property?

What common object contains nitrogen, and name an associated property?

• A. Fertilizer; plant food
• B. Water; plant food
• C. Oxygen tank; plant food
• D. Charcoal; plant food

Answer: (A)

Nitrogen is a key nutrient plants need to grow, especially for making chlorophyll and amino acids. Fertilizer is a common object that contains nitrogen, and it’s used precisely as plant food to supply essential nutrients. This makes it the best match because it directly ties a nitrogen-containing item to the idea of feeding plants. Other options don’t fit this purpose: water is primarily about hydration, an oxygen tank provides breathable oxygen, and charcoal is mainly carbon and not a standard source of plant nutrients.

Nitrogen is a key nutrient plants need to grow, especially for making chlorophyll and amino acids. Fertilizer is a common object that contains nitrogen, and it’s used precisely as plant food to supply essential nutrients. This makes it the best match because it directly ties a nitrogen-containing item to the idea of feeding plants. Other options don’t fit this purpose: water is primarily about hydration, an oxygen tank provides breathable oxygen, and charcoal is mainly carbon and not a standard source of plant nutrients.